ML20073B602

Monthly Operating Repts for Aug 1994 for Prairie Island Nuclear Generating Plant Units 1 & 2

ML20073B602
Person / Time
Site:	Prairie Island
Issue date:	08/31/1994
From:	Richard Anderson, Dugstad D NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9409220135
Download: ML20073B602 (9)

Text

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Northern States Power Company

, Prairie Island Nuclear Generating Plant 1717 Wakonade Dr. East Welch. Minnesota 55089 September 7, 1994 Prairie Island Technical Specifications Section 6.7.A.3 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50 282 License Nos. DPR-42 50-306 DPR-60 Monthly Operating Report August 1994 Attached is the Monthly Operating Report for August 1994 for the Prairie Island Generating Plant, w MN tRog Anderson -

Director Licensing and Management Issues c: Director, Office of Resource Management Regional Administrator-III, NRC i NRR Project Manager, NRC IGC Resident Inspector State of Minnesota - Kris Sanda Attachment

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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50-282 i UNIT PRAIRIE ISLAND.NO.1 DATE SEPTEMBER 2, 1994 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 i MONTH: AUGUST 1994 i'he Unit was base loaded this month. On August 4th at 2102 the u.'it's' power was reduced to approximatly 60% to look for a leak in the reactor coolant system. On the 5th at 0150, the leak was found and the decision was made to take the Unit off-line to make repairs. The leak was on a spare reactor vessel adaptor canopy seal.

After repairs were completede the reactor went critical on the lith at 1555 and the generator was placed on-line at'2341.

There were no other power-reductions or shutdowns.

i CURRENT CONTINUOUS OPERATING RUN OF 20 DAYS. i l

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AVERAGE DAILY UNIT POWER LEVEL 1

DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO 1 DATE SEPTEMBER 2, 1994.

COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 .

MONTH: AUGUST 1994 DAY AVERAGE DAILY POWER LEVEL (MWE-NET) 1 514 2 511 3 511 4 474 5 -13 6 -6 .

7 -6 8 -6 9 -6 10 -16 11 -18 12 185 ,

13 460 14 522 r 15 523 16 518 17 521- .i 18 520 19 517 20 519 -

21 519 22 517 23 519  ;

24 518 ,

25 517 26 514 t 27 517

• 28 515 l 29 517  !

30 520 31 522 -

AVERAGE. LOADS ABOVE 513 MWE-NET ARE DUE TO COOLER CONDENSER CIRCULATING WATER I

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OPERATING DATA REPORT 4

DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE SEPTEMBER 2, 1994 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 OPERATING STATUS

1. UNIT NAME: PRAIRIE ISLAND NO. 1

2. REPORTING PERIOD: AUGUST 1994

3. LICENSED THERMAL POWER (MWT): 1650

4. NAMEPLATE RATING (GROSS MWE): 593

5. DESIGN ELECTRICAL RATING (NET MWE) : 530

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 545

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE) : 513

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBER 3 THROUGH 7)

SINCE LAST REPORT GIVE REASON: NONE

9. POWER LEVEL.TO WHICH RESTRICTED, IF ANY (NET MWE): NONE

10. REASONS FOR RESTRICTIONS, IF ANY: NONE THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 744 5831 181535

12. NUMBER OF HOURS REACTOR WAS CRITICAL 587.4 4363.4 154670.3

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 5571.1

14. HOURS GENERATOR ON-LINE 578.7 4330.1 153012.0

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 920848 6878274 242091422

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 304650 2297700 79721770

18. NET ELECTRICAL ENERGY GENERATED (MWH) 286093 2168137 74907921

19. UNIT SERVICE FACTOR 77.8 74.3 84.3

20. UNIT AVAILABILITY FACTOR 77.8 74.3 84.3

21. UNIT CAPACITY FACTOR (USING MDC NET) 75.0 72.5 82.0

22. UNIT CAPACITY FACTOR (USING DER NET) 72.6 70.2 77.9

23. UNIT FORCED OUTAGE RATE 22.2 3.7 5.0

24. FORCED OUTAGE HOURS 165.3 165.3 8125.9

25. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE & DURATION OF EACH):

N/A

26. IF CURRENTLY SHUTDOWN ESTIMATED STARTUP DATE: N/A i

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UNIT SHUTDOWNS AND POWER REDUCTION DOCKET NO 50-282 UNIT NAME PRAIRIE ISLAND NO. 1 DATE SEPTEMBER 2, 1994 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 MONTH: AUGUST 1994 DATE TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT YY/MM/DD 000.0 94/08/05 F 165.3 A 2 N/A AB RCT Reactor vessel adaptor canopy seal leak.

TYPE REASON METHOD SYSTEM CODE l

F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT IEEE STD i S-SCHED B-MAINTENANCE OR TEST 2-MANUAL TRIP 805-1984 (P805-D5)

C-REFUELING 3-AUTO TRIP  !

D-REGULATORY RESTRICTION 4-CONTINUED I E-OPERATOR TRAINING & 5-REDUCED LOAD COMPGNENT CODE I LICENSE EXAMINATION 9-OTHER l F-ADMINISTRATIVE IEEE STD 803A-1983 G-OPERATIONAL ERROR l H-OTHER l

1 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE l i

j DOCKET NO. 50-306 UNIT PRAIRIE ISLAND NO.2 DATE SEPTEMBER 2, 1994 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 MONTH: AUGUST 1994 The Unit was base loaded this month, there were no power reductions

, or shutdowns.

Spent Fuel Pool Update.

Fuel assemblies in each core - 121 Fuel assemblies in the spent fuel pool consolidated - 18 unconsolidated - 1293 Licensed spent fuel pool storage capacity - 1386 Date of last refueling that can be discharged with present capacity - 5/19/1994 CURRENT CONTINUOUS OPERATING RUN OF 40 DAYS.

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4 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-306 UNIT PRAIRIE ISLAND NO.2 DATE SEPTEMBER 2, 1994 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 MONTH: AUGUST 1994 DAY AVERAGE DAILY POWER LEVEL (MWE-NET) 1 513 2 511 3 512 4 512 5 515 ,

6 513 7 513 8 515 9 519 10 523 11 522 12 522 13 524 14 523 15 524 16 519 17 522 18 521 19 518 20 521 21 519 22 518 23 519 24 519 25 516 26 516 ,

27 516 l 28 519 ,

29 517 i 30 521 31 522 I

I AVERAGE LOADS ABOVE 512 MWE-NET ARE DUE l TO COOLER CONDENSER CIRCULATING WATER i i

f 1 1

4 OPERATING DATA REPORT DOCKET NO. 50-306 UNIT PRAIRIE ISLAND NO.2 DATE SEPTEMBER 2, 1994 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 OPERATING STATUS

1. UNIT NAME: PRAIRIE ISLAND NO. 2

2. REPORTING PERIOD: AUGUST 1994

3. LICENSED THERMAL POWER (MWT): 1650

4. NAMEPLATE RATING (GROSS MWE): 593

5. DESIGN ELECTRICAL RATING (NET MWE): 530

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 544

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 512

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBER 3 THROUGH 7)

SINCE LAST REPORT GIVE REASON: NONE

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE): NONE

10. REASONS FOR RESTRICTIONS, IF ANY: NONE THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 744 5831 172653

12. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 5814.2 152181.2

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1516.1

14. HOURS GENERATOR ON-LINE 744.0 5805.3 150793.7

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0 ,

16. GROSS THERMAL ENERGY GENERATED (MWH) 1224824 9525041 239480680

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 407470 3182120 78087290 ,

18. NET ELECTRICAL ENERGY GENERATED (MWH) 385555 3007924 73812460 l

19. UNIT SERVICE FACTOR 100.0 99.6 87.3

20. UNIT AVAILABILITY FACTOR 100.0 99.6 87.3

21. UNIT CAPACITY FACTOR (USING MDC NET) 101.2 100.8 85.4 )

22. UNIT CAPACITY FACTOR (USING DER NET) 97.8 97.3 80.7  !

23. UNIT FORCED OUTAGE RATE 0.0 0.4 2.6 l

24. FORCED OUTAGE HOURS 0.0 20.7 3984.7

25. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE & DURATION OF EACH):

REFUELING OUTAGE IN MAY 1995.

26. IF CURRENTLY SHUTDOWN ESTIMATED STARTUP DATE: N/A

.- 1

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UNIT SHUTDOWNS AND POWER REDUCTION DOCKET NO 50-306 i UNIT NAME SiiA1RIE ISLAND NO. 2- )

DATE SEPTEMBER 2, 1994 1 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 l 1

MONTH: AUGUST 1994 DATE TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT YY/MM/DD 000.0 94/08/00 None l

I 1

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l TYPE REASON METHOD SYSTEM CODE F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT IEEE STD S-SCHED B-MAINTENANCE OR TEST 2-MANUAL TRIP 805-1984(P805-DS)

C-REFUELING 3-AUTO TRIP D-REGULATORY RESTRICTION 4-CONTINUED E-OPERATOR TRAINING & 5-REDUCED LOAD' COMPONENT CODE LICENSE EXAMINATION 9-OTHER F-ADMINISTRATIVE IEEE STD 803A-1983 j G-OPERATIONAL ERROR H-OTHER

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